EMA is an active member of: 

• Advancing Utility Technology Internationally (AUTI, formerly AMRA)
• American Council of Engineering Companies (ACEC)
• American Management Association (AMA)
• American Public Works Association (APWA)
• American Productivity & Quality Center (APQC)
• American Water Works Association (AWWA)
• American Water Works Association Research Foundation (AwwaRF)
• Association of Metropolitan Water Agencies (AMWA)
• Edison Electric Institute (EEI)
• Geospatial Information and Technology Association (GITA)
• InfraGard
• Instrumentation Testing Association (ITA)
• International City/County Management Association (ICMA)
• International Water Association (IWA)
• National Association of Clean Water Agencies (NACWA, formerly AMSA)
• National Association of Water Companies (NAWC)
• United States Conference of Mayors (USCM)
• Urban and Regional Information Systems Association (URISA)
• Water Environment Federation (WEF)
• Water Environment Research Foundation (WERF)

and many other organizations.